Неустранимая ошибка: интерфейс «Psr \ Log \ LoggerInterface» не найден

Неустранимая ошибка: интерфейс «Psr \ Log \ LoggerInterface» не найден в C: \ wamp \ www \ learningpower \ vendor \ neoxygen \ neoclient \ src \ Logger \ LoggerManager.php в строке 20

Я пытаюсь выполнить базовый пример neoxygen.I попытался следующий код.

Я обновил composer.json проекта.
добавил этот код в composer.json

"require": {
"neoxygen/neoclient": "~2.1"},

Я получаю сообщение об ошибке при запуске ниже php.

Fatal error: Interface 'Psr\Log\LoggerInterface' not found in C:\wamp\www\learningpower\vendor\neoxygen\neoclient\src\Logger\LoggerManager.php on line 20

скрипт php

auhor: Christophe Willemsen


<?php

require_once(__DIR__.'/vendor/autoload.php');

use Neoxygen\NeoClient\ClientBuilder;
$client = ClientBuilder::create()
->addConnection('default','http','localhost',7474,true,'neo4j','tarun')
->setAutoFormatResponse(true)
->build();
$query = 'CREATE (user:User {name:"john"})';
$client->sendCypherQuery($query);
$query = 'MATCH (user:User {name:"john"}) RETURN user';
$result = $client->sendCypherQuery()->getResult();
// accessing the user identifier (so the user node) from the result
$john = $result->get('user');
// The $john is a wrapped Node object and have some methods

// The node id
echo $john->getId();
// The labels
print_r($john->getLabels());
// The properties
echo $john->getProperty('name');
$query = 'MATCH (user:User {name:"john"})
CREATE (friend:User {name:"Judith"})
MERGE (user)-[r:FRIEND]->(friend)
RETURN user, friend, r';
$result = $client->sendCypherQuery($q)->getResult();

$john = $result->get('user');
$judith = $result->get('judith');

// What john has for relationships

print_r($john->getRelationships()); // returns relationships objects

// Get a node connected to john

print_r($john->getConnectedNode());
?>

после установки пакета psr / log я получаю эту ошибку

Fatal error: Uncaught exception 'ReflectionException' with message 'Class Neoxygen\NeoClient\Client does not exist' in C:\wamp\www\learningpower\vendor\symfony\dependency-injection\ContainerBuilder.php on line 964

ReflectionException: Class Neoxygen\NeoClient\Client does not exist in C:\wamp\www\learningpower\vendor\symfony\dependency-injection\ContainerBuilder.php on line 964

composer.json

[
{
"name": "monolog/monolog",
"version": "1.13.1",
"version_normalized": "1.13.1.0",
"source": {
"type": "git",
"url": "https://github.com/Seldaek/monolog.git",
"reference": "c31a2c4e8db5da8b46c74cf275d7f109c0f249ac"},
"dist": {
"type": "zip",
"url": "https://api.github.com/repos/Seldaek/monolog/zipball/c31a2c4e8db5da8b46c74cf275d7f109c0f249ac",
"reference": "c31a2c4e8db5da8b46c74cf275d7f109c0f249ac",
"shasum": ""},
"require": {
"neoxygen/neoclient": "~2.1"},
"provide": {
"psr/log-implementation": "1.0.0"},
"require-dev": {
"aws/aws-sdk-php": "~2.4, >2.4.8",
"doctrine/couchdb": "~1.0@dev",
"graylog2/gelf-php": "~1.0",
"phpunit/phpunit": "~4.0",
"raven/raven": "~0.5",
"ruflin/elastica": "0.90.*",
"swiftmailer/swiftmailer": "~5.3",
"videlalvaro/php-amqplib": "~2.4"},
"suggest": {
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"ext-amqp": "Allow sending log messages to an AMQP server (1.0+ required)",
"ext-mongo": "Allow sending log messages to a MongoDB server",
"graylog2/gelf-php": "Allow sending log messages to a GrayLog2 server",
"raven/raven": "Allow sending log messages to a Sentry server",
"rollbar/rollbar": "Allow sending log messages to Rollbar",
"ruflin/elastica": "Allow sending log messages to an Elastic Search server",
"videlalvaro/php-amqplib": "Allow sending log messages to an AMQP server using php-amqplib"},
"time": "2015-03-09 09:58:04",
"type": "library",
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"branch-alias": {
"dev-master": "1.13.x-dev"}
},
"installation-source": "dist",
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"psr-4": {
"Monolog\\": "src/Monolog"}
},
"notification-url": "https://packagist.org/downloads/",
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"MIT"],
"authors": [
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"name": "Jordi Boggiano",
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"keywords": [
"log",
"logging",
"psr-3"]
},
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"name": "guzzlehttp/streams",
"version": "2.1.0",
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"time": "2014-08-17 21:15:53",
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},
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],
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},
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],
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],
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"homepage": "https://symfony.com"},
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"suggest": {
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"time": "2015-05-29 16:22:24",
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},
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"license": [
"MIT"],
"authors": [
{
"name": "Fabien Potencier",
"email": "[email protected]"},
{
"name": "Symfony Community",
"homepage": "https://symfony.com/contributors"}
],
"description": "Symfony Console Component",
"homepage": "https://symfony.com"},
{
"name": "neoxygen/neoclient",
"version": "2.2.4",
"version_normalized": "2.2.4.0",
"source": {
"type": "git",
"url": "https://github.com/neoxygen/neo4j-neoclient.git",
"reference": "8f108f2028b8ecb34910cf81698720d334b83971"},
"dist": {
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"reference": "8f108f2028b8ecb34910cf81698720d334b83971",
"shasum": ""},
"require": {
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"monolog/monolog": "~1.1",
"php": ">= 5.4",
"symfony/config": "~2.5",
"symfony/console": "~2.5",
"symfony/dependency-injection": "~2.5",
"symfony/event-dispatcher": "~2.5",
"symfony/yaml": "~2.5"},
"require-dev": {
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"bossa/phpspec2-expect": "*",
"phpspec/phpspec": "~2.0",
"phpunit/phpunit": "4.*"},
"time": "2015-06-08 19:30:20",
"type": "library",
"extra": {
"branch-alias": {
"dev-master": "2.1-dev"}
},
"installation-source": "dist",
"autoload": {
"psr-4": {
"Neoxygen\\NeoClient\\": "src/"}
},
"notification-url": "https://packagist.org/downloads/",
"license": [
"MIT"],
"authors": [
{
"name": "Christophe Willemsen",
"email": "[email protected]"}
],
"description": "NeoClient is the most advanced Http Client for Neo4j",
"homepage": "http://neoxygen.io",
"keywords": [
"client",
"cluster",
"graph",
"high-availibility",
"neo4j"]
}

]

Любое решение. Помощь будет с благодарностью.